20013231333120 has 288 divisors, whose sum is σ = 68254257899520. Its totient is φ = 4986610728960.

The previous prime is 20013231333037. The next prime is 20013231333163. The reversal of 20013231333120 is 2133313231002.

It is a super-2 number, since 2×20013231333120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553507 + ... + 6350813.

It is an arithmetic number, because the mean of its divisors is an integer number (236993951040).

Almost surely, 2^{20013231333120} is an apocalyptic number.

20013231333120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20013231333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34127128949760).

20013231333120 is an abundant number, since it is smaller than the sum of its proper divisors (48241026566400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013231333120 is a wasteful number, since it uses less digits than its factorization.

20013231333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797391 (or 5797377 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20013231333120 its reverse (2133313231002), we get a palindrome (22146544564122).

The spelling of 20013231333120 in words is "twenty trillion, thirteen billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty".